It’s not easy eating green, as most plants have chemical defenses to deter would-be grazers. Getting enough to eat, while minimizing exposure to toxins, is a persistent challenge that shapes an ...
Most human populations currently consume a restricted diet, compared with a century ago, a study finds. The carbon and nitrogen isotope composition of human tissues can provide clues to past and ...
It’s not easy eating green. Most plants are heavily defended with chemicals to deter would-be grazers. Getting enough to eat while minimizing exposure to toxins is a persistent challenge that shapes ...
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